(19)
(11) EP 0 550 897 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.09.1993 Bulletin 1993/39

(43) Date of publication A2:
14.07.1993 Bulletin 1993/28

(21) Application number: 92122034.9

(22) Date of filing: 28.12.1992
(51) International Patent Classification (IPC)5: H05B 6/76, H05B 6/66
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 31.12.1991 KR 2563691

(71) Applicant: DAEWOO ELECTRONICS CO., LTD
Jung-Gu, Seoul 100-095 (KR)

(72) Inventors:
  • Han, Jang-Seop
    Yongsan-Gu, Seoul (KR)
  • Lee, Jae-Yong
    Namdong-Gu, Incheon (KR)
  • Lee, Jong-Chul
    Incheon (KR)

(74) Representative: von Samson-Himmelstjerna, Friedrich R., Dipl.-Phys. et al
SAMSON & PARTNER Widenmayerstrasse 5
D-80538 München
D-80538 München (DE)


(56) References cited: : 
   
       


    (54) Microwave oven door control device


    (57) Disclosed is a microwave oven with an automatic door control device. Novel door latching/opening means which uses permanent magnets and electromagnets is provided in place of hook-type door latches and slots on a oven wall. Door state detecting means is also provided in which the existing permanent magnets and electromagnets rather than a seperate mechanical switch are utilized to discrimate the door closed state from the door open state. Further, a processing means is employed to control the operation of the door latching/opening means and microwave energy generator in response to the input signals from the door state detecting means and the door open switch.






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